Alex Tessnow, M.D., is an Associate Professor in the Department of Internal Medicine at UT Southwestern Medical Center. He specializes in thyroid nodules and thyroid cancer.

Dr. Tessnow earned his medical degree at UT Southwestern Medical School. He completed a residency in internal medicine at the University of Utah and received advanced training in the subspecialty of endocrinology, diabetes, and metabolism through a fellowship at UT Southwestern. He also holds an MBA in health care leadership from UT Southwestern and the UT Dallas Naveen Jindal School of Management.

Certified by the American Board of Internal Medicine in endocrinology, diabetes, and metabolism, he joined the UT Southwestern faculty in 2011.

A Fellow of the American College of Endocrinology, Dr. Tessnow serves as Chief of the Endocrinology Service at Parkland Memorial Hospital and as an Academic Colleges mentor at UTSW. He’s a member of the American Association of Clinical Endocrinology, the Endocrine Society, and the American Thyroid Association.

He has delivered several invited lectures and published numerous academic articles.

Dr. Tessnow has been included in D Magazine's Best Doctors list for several years.

Education & Training
  • Fellowship - UT Southwestern Medical School (2007-2009), Endocrinology & Metabolism
  • Residency - University of Utah Healthcare - Salt Lake City (1996-1999), Internal Medicine
  • Medical School - UT Southwestern Medical School (1992-1996)
Professional Associations & Affiliations
  • American Association of Clinical Endocrinology, Member TX Board of Directors
  • The Endocrine Society
  • American Thyroid Association (2011-2013), member
Honors & Awards
  • D Magazine Best Doctor 2017-2022
  • Daniel W. Foster Clinical Teaching Award 2013, UT Southwestern, Division of Endocrinology
  • North Central Texas Clinical and Translational Science Initiative Pilot 2008
  • Departmental Award in Chemistry 1992, University of Dallas
  • Cardinal Spellman Award for Academic Achievement 1992, University of Dallas
  • Member 1991, Phi Beta Kappa
Books & Publications

Clinical Focus

  • Thyroid Nodules
  • Thyroid Cancer

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